Melt remaining margarine in same skillet on medium-high heat. Add onions; cook and stir 3 min. Stir in mushrooms and garlic; cook 5 min. or until mushrooms are tender, stirring frequently. Add wine and any liquid released from the scallops; cook 3 min. or until most the liquid is absorbed. Stir in cream cheese product; cook and stir on medium-low heat 1 min. Return scallops to skillet; cook 4 min., stirring occasionally. Spoon into 4 (1-cup) ramekins; sprinkle with crumb mixture.